MHT CET202415 May 2024Evening ShiftPhysicsThermodynamicsActual
Heat engine operating between temperature T₁ and T₂ has efficiency 1 6 . When T₂ is lowered by 62 K , its efficiency increases to 1 3 . Then T ₁ and T ₂ respectively are
Options
- A372 ~K , 310 ~K
- B372 ~K , 330 ~K
- C330 ~K , 268 ~K
- D310 ~K , 248 ~K
Correct answer
A. 372 ~K , 310 ~K
Step-by-step solution
Given, ₁= 1 6 =1- T₂ T₁ = T₂= 5 6 T₁ Also, ₂= 1 3 =1- (T₂-62 ) T₁ Substituting (i), array ll & ( 5 6 T₁-62 ) T₁ =1- 1 3 & 5 6 T₁-62=T₁ 2 3 & T₁=372 ~K & T₂= 5 6 372=310 ~K array